Table II.

Comparison of imaging characteristics and treatments between different groups.

					P-value
Item	MOG antibody (+)	AQP4 antibody (+)	MOG/AQP4 antibody (−)	MOG/AQP4 antibody (+)	MOG antibody (+) vs. AQP4 antibody (+)	MOG antibody (+) vs. MOG/AQP4 antibody (−)	AQP4 antibody (+) vs. MOG/AQP4 antibody (−)
Optic nerve MRI
Intraorbital segment of optic nerve n (%)	11 (25.6)	20 (46.5)	11 (25.6)	1 (2.3)	–	–	–
Canal segment of optic nerve n(%)	6 (54.5)	19 (95)	6 (54.5)	0 (0)	0.011	1.000	0.012
Intracranial segment of optic nerve n (%)	2 (18.2)	14 (70)	1 (9.1)	0 (0)	0.008	1.000	0.002
Optic chiasma n (%)	1 (9.1)	7 (35)	0 (0)	0 (0)	0.213	1.000	0.036
Brain MRI
Intracranial lesions n (%)	3 (27.3)	9 (45)	2 (18.2)	1 (100)	0.472	1.000	0.211
Spinal MRI
Spinal involvement n (%)	1 (9.1)	4 (20)	0 (0)	0(0)	0.655	1.000	0.287
Abnormality in other immune indexes n (%)	3 (27.3)	10 (50)	4 (36.4)	1 (100)	0.285	1.000	0.735

MOG, myelin oligodendrocyte glycoprotein; AQP, aquaporin; MRI, magnetic resonance imaging.